panoramic view of the sharp serpentine road on the way to altavista refuge. teide volcano in tenerife, canary islands

altavista background basalt beautiful canary canyon del flow footpath hiking hill incline island landmark landscape lava mirador mount mountain nature panorama panoramic path peak pico refuge road rock scenery scenic serpentine sharp slope steep stones stream teide telerifico tenerife top tour tourism trail travel trek trekking view volcanic volcano